    int256 result = _lpTokenSpecified( //@audit-info - amount of reserved token to withdraw
        withdrawnToken,
        -int256(burnedAmount),
        FEE_DOWN, //@audit-issue - discrepancy between the NATSPEC and the implementation regarding FEE_DOWN
        int256(totalSupply),
        int256(xBalance),
        int256(yBalance)
    );
